Combination-cock.



C. H. PITT.

COMBINATION COCK.

APPLIGATION FILED MAR. 13, 1913.

1,077,231. Paten-bed 0015.28, 1913.,-

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CLARENCE PITT, OF ESSINGTON, PENNSYLVANIA..

COMBINATION-COCK normaal.

application med March 1a, 1913. serial no. 753,985.

To all Quitar/aj z' may conce-m.'

Be it known that l, CLARENCE H. Prrn,

residing at Essington, in the county of Delaware and State of Pennsylvania, have 1nvented a new and useful 'Combination-Cock, of which the following is a specification.

My invention is in the nature of a combination plug or key cock that is so designed that the same may be readily adjusted in such a manner whereby to close the passageway to prevent the flow of any liquid therethrough until a proper known correlative arrangement of the parts is effected, the several parts being arranged somewhat on the order of a combination cock so that a knowledge of the combination is necessary before the user can turn the same 'the open position.

. to allow the liquid to flow therethrough.

Primarily, my invention seeks to provide a device of the character stated of a simple and inexpensive nature, and which,l while adapted for any of the general uses for which cocks, controlling valves or faucets may be used, is especially useful as a motor lock for controlling the flow ofv gaseous fluids to motor engines and the like, since it will not admit of the passage of the fluid, through it until' the proper combination is set on the dial or index face of the device.

Vf ith other objects in view that will hereinafter appear my invention consists in the peculiar construction and novel arrangement of parts, all of which will be hereinafter fully explained, specically pointed out in the appended claim and-illustrated in the accompanying drawing, in which Figure 1 is a perspective view of my invention. Fig. 2 is a top plan view, the inner and out passage controlling plugs vor members being set at the closed position. Fig. 3 is a vertical section thereof on the line 3-3 on Fig. 2. Fig. 4 is a plan view thereof, the controlling plugs being set at Fig. 5 is a vertical section thereof on the line 5 5 on Fig. 4. Fig. 6 is a perspective view that shows the main or body portion and the inner and outer plugs or controlling members, separated.

ln carrying outJ my invention, l provide a body member 1' that has the usual taper bore 2v for receiving the controlling valve, which in my construction is composed of an outer plug or key 3 and an inner plug or key 4, the latter having a taper shank 40 that seats in the tapered bore 30 in the outer plug as is clearly shown on Figs. 3 and 5 of the drawing.

The bodyor casing l has an inlet 10 atri one side and an outlet 11 at the other side, and said outlets are disposed in different planes whereby to cause the fluid to. take a somewhat circuitous route in passing through the cock. The inner plug 2, which constitutes the turning valve, extends through the other or outer plug 3, and its lower end is externallythreaded, as at 20, to receive a screw washer 6, for adjusting the bearing of the plug 2 within plug 3 and to hold the said plugs tight to their seats. The washer 6 is protected and held from being taken offby a closure cap 5 that screws into the threaded lower end 10d -of lthe body 1, it being threaded on a ground joint to also prevent the plugs 2 and 3 from leaking and to act as a water or dirt catcher. Plug 2 has a central bore 2O that extends up 'through the bottom about twofthirds its length and it has two diametrically oppo sitely disposed passages 21-22, either one of which is adapted for being brought into communication with a pair of oppositely disposed elongated passageways 31-82 in the outer plug 3, as is' clearly shown in Fig. 5.

4 designatesa butterfly or turning member that seats on a like shaped stub .25

on the upper end of the plug 4, which has a single threaded socket 26, for receiving a set screw 7 insertible throu h any one of a series of horizontal and ra ially arranged apertures 42 in the base or collar portion 43 of the butterfly 4, the number of such apertures being in harmony with the diiferent sets of passages 20 and 21 in the plug, it being understood the placing of the set screw 7 determinesothe particular combination for'which the motor lock may be set.

- Assuming the device as shown as having been set for the letter R, the butterfly 30 of the member 3 need only be turned to register with R on the dial surface 15 of the rangement, the manner in which my device is used and the advantages thereof will be readily apparent.

The several parts can be easily made and assembled and their correlative arrangement is such that it Will be almost impossible Afor anyone-to use it other than those to Whom the combination is known.

What I claim is:

n The combination with the' casing having an inlet and an outlet arranged in 'diametrically opposite sides and a central bore, a

pair of cocks'nested in the said bore and in each other, the outer cock having'its upper end formed with a turning member, the upper-faces of the cocksand the casing having correlating dials, ,the inner cock having `*'oppositely disposed passages either one of Which is adapted to be brought into registervvith the Jpassages inthe outer cock, the 2o upper end o the inner cock having an extension formed with a single screw socket, and a turning member having a socket for itting onto the said extension and a series of radially disposed passages any one of which is adapted to be brought into register with the screvv socket on the aforesaid extension and a screw plug for fitting any of the said radial passages and the screw socket.

VCLARENCE H. PITT.

Witnesses:

NELSON MILLER, EDWIN H. HUGHES. 

